The Dunlop Aerogel 4D Elite is, according to Dunlop’s Website, the racket used by Gregory Gaultier of France.
However, that may not be exactly true. There are comments floating around the internet, including here and here, that indicate Gaultier may actually be playing the Dunlop ICE Elite, which was available a few years ago.
This picture of Gaultier from SquashSite does in fact show him playing with the Aerogel 4D Elite…
…but it’s possible he’s using an older racket and it’s just been given an Aerogel 4D Elite paint job. This does happen sometimes — Ramy Ashour is another example — when players become so accustomed to a particular racket that they just simply don’t want to change when their sponsor rolls over to their new line of rackets.
In any case, here’s Gregory using his racket against Peter Barker in the Case Swedish Open:
Name: Dunlop Aerogel 4D Elite
Manufacturer: Dunlop Squash
Weight: Light (135 grams)